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A kind of Ningnanmycin and ginkgolic acid compound fungicide and its preparation method

A compound fungicide and ginkgo phenolic acid technology, applied in the field of pesticides, can solve the problems of low extraction rate of active ingredients, unsatisfactory killing effect, complicated preparation process, etc., to enhance the control effect, fully optimize the preparation process, and simplify the extraction. The effect of craftsmanship

Active Publication Date: 2021-11-05
LINYI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly exists in the outer testa of Ginkgo biloba. my country has sufficient resources of Ginkgo biloba. During the picking of ginkgo fruit, a large amount of outer testa is thrown away as waste, which not only pollutes the environment, but also wastes resources.
[0006] At present, there are inventions using ginkgophenolic acid to prepare insecticides and fungicides, such as CN201711376980.5, patent CN105145666A, patent CN105284955A, etc., but all of them have low extraction rate of active ingredients, complicated preparation process, high cost and unsatisfactory killing effect, etc. many deficiencies

Method used

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  • A kind of Ningnanmycin and ginkgolic acid compound fungicide and its preparation method
  • A kind of Ningnanmycin and ginkgolic acid compound fungicide and its preparation method
  • A kind of Ningnanmycin and ginkgolic acid compound fungicide and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A compound bactericide of Ningnanmycin and ginkgolic acid, which is prepared from the following raw materials in parts by weight: 10 parts of ginkgolic acid extract, 5 parts of Ningnanmycin, 1 part of synergist, 1 part of surfactant, 0.1 part of preservative, 0.1 part of antioxidant, 0.15 part of antifreeze; the ginkgolic acid extract is prepared by the following method:

[0037] 1) Dry the Ginkgo biloba testa at 50°C, crush it and place it in a container, add absolute ethanol according to the solid-to-liquid ratio of 1:15, extract with microwave at 70°C for 10 minutes, and then filter through gauze to obtain a crude extract;

[0038] 2) Purify the crude extract using a silica gel column, using petroleum ether, ethyl acetate and glacial acetic acid with a volume ratio of 80:20:3 as the eluent to elute 1-3 times at a flow rate of 2ml / min to obtain the eluent, Then the eluate is concentrated in vacuo to remove the organic solvent to obtain a fine extract;

[0039] 3) Pre...

Embodiment 2

[0054] A compound fungicide of Ningnanmycin and ginkgolic acid, prepared from the following raw materials in parts by weight: 12 parts of gingkophenolic acid extract, 8 parts of Ningnanmycin, 2 parts of synergist, 3 parts of surfactant, 0.2 parts of preservatives, 0.3 parts of antioxidants, 0.2 parts of antifreeze; the ginkgolic acid extract is prepared by the following method:

[0055] 1) Dry the Ginkgo biloba testa at 50°C, crush it and place it in a container, add absolute ethanol according to the solid-to-liquid ratio of 1:15, extract with microwave at 70°C for 10 minutes, and then filter through gauze to obtain a crude extract;

[0056] 2) Purify the crude extract using a silica gel column, using petroleum ether, ethyl acetate and glacial acetic acid with a volume ratio of 80:20:3 as the eluent to elute 1-3 times at a flow rate of 2ml / min to obtain the eluent, Then the eluate is concentrated in vacuo to remove the organic solvent to obtain a fine extract;

[0057] 3) Pre...

Embodiment 3

[0072] A compound fungicide of Ningnanmycin and ginkgolic acid, prepared from the following raw materials in parts by weight: 15 parts of ginkgolic acid extract, 10 parts of Ningnanmycin, 3 parts of synergist, 5 parts of surfactant, 0.3 part of preservative, 0.5 part of antioxidant, 0.25 part of antifreeze; the ginkgolic acid extract is prepared by the following method:

[0073] 1) Dry the Ginkgo biloba testa at 50°C, crush it and place it in a container, add absolute ethanol according to the solid-to-liquid ratio of 1:15, extract with microwave at 70°C for 10 minutes, and then filter through gauze to obtain a crude extract;

[0074] 2) Purify the crude extract using a silica gel column, using petroleum ether, ethyl acetate and glacial acetic acid with a volume ratio of 80:20:3 as the eluent to elute 1-3 times at a flow rate of 2ml / min to obtain the eluent, Then the eluate is concentrated in vacuo to remove the organic solvent to obtain a fine extract;

[0075] 3) Prepare the...

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Abstract

The invention discloses a ningnanmycin and ginkgolic acid compound fungicide and a preparation method thereof, belonging to the technical field of pesticides. The fungicide of the present invention comprises the following raw materials prepared in parts by weight: 10-15 parts of ginkgolic acid extract, 5-10 parts of Ningnanmycin, 1-3 parts of synergist, 1-5 parts of surfactant, preservative 0.1-0.3 parts, 0.1-0.5 parts of antioxidant, 0.15-0.25 parts of antifreeze. The botanical-microbial source fungicide of the present invention has fully optimized preparation process, low dosage, good effect, safety, environmental protection and pollution-free, can be used instead of common commercial pesticides, greatly reduces the application of chemical pesticides in the agricultural field, and has extensive practical promotion Value.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a compound bactericide of Ningnanmycin and ginkgolic acid and a preparation method thereof. Background technique [0002] With the development of the economy, people pay more and more attention to the safety of food. In recent years, there have been many reports about pesticide residues exceeding the standard on the surface of agricultural products in my country. The pesticides remaining on the surface of agricultural products seriously endanger human health, and at the same time cause environmental pollution and damage to ecological balance. [0003] Ningnanmycin is isolated from the soil in Ningnan County, Sichuan Province. It is the first cytidine peptide-type new antibiotic discovered, so its fermentation product is named Ningnanmycin. It has obtained registrations in tobacco mosaic virus disease, tomato virus disease, pepper virus disease, rice blight, soybea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/54A01N37/40A01P3/00A01P1/00
CPCA01N37/40A01N43/54
Inventor 周楷轩崔爱华张现增冷鹏
Owner LINYI ACADEMY OF AGRI SCI
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